论文标题
在Hong-Ou-Mandel干扰实验中纠缠两光子吸收效应的光谱考虑因素
Spectral considerations of Entangled two-photon absorption effects in Hong-Ou-Mandel interference experiments
论文作者
论文摘要
最近，据报道，旨在检测各种材料中纠缠的两光子吸收（ETPA）现象的不同实验方法。目前的工作探讨了一种不同的方法，该方法是根据洪 - 曼德尔（HOM）干涉图的可见性所引起的变化来研究ETPA过程的。通过使用Rhodamine B的有机溶液作为与自发参数降低转化率（SPDC）类型-II产生的800 nm区域的非线性材料模型，研究了可以检测ETPA的HOM干预可见性的变化的条件。我们通过提出一个模型来支持对结果的讨论，在该模型中，该模型被视为光谱过滤函数，该模型满足ETPA所需的能源保护条件，从而可以很好地解释具有良好一致性的实验观察结果。我们认为，这项工作代表了通过使用超敏感的量子干扰技术和过程的详细数学模型来研究ETPA相互作用的新观点。
Recently, different experimental methods intended to detect the entangled two-photon absorption (ETPA) phenomenon in a variety of materials have been reported. The present work explores a different approach on which the ETPA process is studied based on the changes induced in the visibility of a Hong-Ou-Mandel (HOM) interferogram. By using an organic solution of Rhodamine B as a model of nonlinear material interacting with entangled photons at 800 nm region produced by spontaneous parametric down conversion (SPDC) Type-II, the conditions that make possible to detect changes in the visibility of a HOM interferogram upon ETPA are investigated. We support the discussion of our results by presenting a model in which the sample is considered as a spectral filtering function which fulfills the energy conservation conditions required by ETPA, allowing to explain the experimental observations with good agreement. We believe that this work represents a new perspective to studying the ETPA interaction, by using an ultra-sensitive quantum interference technique and a detailed mathematical model of the process.
